Question

A common example of $\beta^{-}$decay is $15 P^{32} \rightarrow 16 S^{32}+x+y$ Then $x$ and $y$ stands for

• A. electron and neutrino
• B. positron and neutrino
• C. electron and anti neutrino
• D. positron and antineutrino

Answer 1

Answer: (C)

A beta minus particle $\left(\beta^{-}\right)$s an electron.
Emission of $\beta^{-}$involves transformation of a neutron into a proton, an electron and a third particle called an antineutrino $(\bar{v})$
${ }_{15} P^{32} \rightarrow{ }_{16} S^{32}+{ }_{-1} \beta^{0}+\bar{v}$